The Price Histogram is a very reliable tool. It’s a bit intuitive but extremely effective. The price histogram simply shows you the “most
convenient” trading points of the market. This is aa leading indicator, because it shows the points where market can change its direction in
advance. The indicators like moving averages or oscillators cannot specify the exact points of resistance and support, they can only show
the fact whether the market is overbought or oversold.
Usually, the Price Histogram (or Market Profile) is applied to 30 min. price charts to study the market activity during one day. I prefer to use the 5
min. charts for stock markets and 15-30 min. charts for FOREX.
What does POC show? The price that is remembered by most of traders. The longer market is traded at this price, the longer market remembers it.
Psychologically POC acts as a center of attraction.